Kézai Simon's Chronicle is a historical work written in the late 13th century by the Hungarian chronicler Simon Kézai. It provides a detailed account of the history of the Hungarian Kingdom, focusing on its origins, notable events, and key figures. The chronicle is one of the earliest written records of Hungarian history and reflects the political and cultural context of the time. The text is significant for its insights into the Mongol invasions and the Árpád dynasty, which played a crucial role in shaping Hungary's development. Kézai's work is considered an important source for historians studying medieval Hungary and its legacy.